get_user

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations, the description must carry the behavioral burden; it usefully discloses an API-version compatibility constraint, which is more than most definitions offer. It says nothing about required privileges (user endpoints typically need admin), what happens for a nonexistent username, or whether the lookup is exact/case-sensitive at the server side.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with a one-line purpose and a clearly delimited Args section; nothing extraneous. The only waste is repeating '(API v1 only)' twice, once in the purpose and once in the parameter note.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

This is a simple single-parameter read tool and an output schema exists, so return values need not be explained. The API-version constraint and parameter meaning are covered; only auth prerequisites and not-found behavior are missing, which are minor for a definition of this scope.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0% and the single parameter is a bare string, so the description must compensate. It does add meaning — 'Exact Airflow username' implies no fuzzy or partial matching, and the v1-scoping note clarifies which identifier namespace applies — but it gives no format examples or failure behavior for a mistyped name.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource ('Gets details of a specific user'), and the singular scope distinguishes it from the sibling list_users. The '(v1 API only)' qualifier further narrows it, but it never explicitly names list_users as the alternative for enumerating users.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The '(v1 API only)' note is a real constraint that tells the agent when this tool will not work, and 'specific user' implies lookup rather than enumeration. However, there is no explicit guidance on when to pick this over list_users, and no mention of the permission level needed to read user records.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.